User`s guide

AlphaBIOS Console 5-11
➊ Physical Disk ID – Based on the SCSI ID. The disk with the lowest SCSI ID is
disk 0, the disk with the next lowest SCSI ID is disk 1, and so on.
➋ Controller – The brand and model of the SCSI chip used on the SCSI controller.
➌ Controller number – Based on how many SCSI controllers of a particular type
are installed in the system. The first controller of a type is always numbered 0.
➍ SCSI ID number – A unique number you assign to each SCSI device installed in
the system. This is usually done with jumpers or a thumb wheel attached to the
drive housing.
➎ Size – The raw capacity of the drive. Formatting the drive with different file
systems, FAT or NTFS, may result in different usable capacity because of the
differences in storage management under those file systems.
➏ Partition number – Within a single drive, partition numbers are assigned in
sequential order: 1, 2, 3, and so on. The partitions populate the drive from the
innermost cylinders to the outermost cylinders. If you have a large hard disk
(over 800 MB) and plan to use the FAT file system, break the disk into several
smaller partitions because the FAT file system uses disk space more efficiently
at smaller partition sizes. This is not a concern for the NTFS file system,
however, since it uses disk space very efficiently at all partition sizes.
➐ Partition size – The raw (unformatted) storage capacity of the partition. Actual
storage space will differ based on the file system with which the partition is
formatted.
➑ Partition format – The file system (if any) used on a partition. This field
displays FAT, NTFS, or unrecognized (if the partition is unformatted).